Study Guides/Maths/Prime Factorization of 35280
Study Guide · Maths

Prime Factorization of 35280 — Step by Step

Prime factorization is the process of expressing a number as a product of its prime factors. To find the prime factorization of 35280, we divide the number repeatedly by the smallest prime numbers until we reach 1. The prime factorization of 35280 is 2⁴ × 3² × 5 × 7².

Question (Click to Flip)

What is the prime factorization of 35280?

Answer

The prime factorization of 35280 is 2⁴ × 3² × 5 × 7² = 16 × 9 × 5 × 49. Step-by-step: 35280 ÷ 2 = 17640, ÷2 = 8820, ÷2 = 4410, ÷2 = 2205, ÷3 = 735, ÷3 = 245, ÷5 = 49, ÷7 = 7, ÷7 = 1.

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Key Facts

Prime factorization of 35280 = 2⁴ × 3² × 5 × 7².

Division steps: 35280 → 17640 → 8820 → 4410 → 2205 → 735 → 245 → 49 → 7 → 1.

35280 = 16 × 9 × 5 × 49.

Number of factors of 35280 = (4+1)(2+1)(1+1)(2+1) = 90.

35280 is not a perfect square (since 5 appears to power 1, which is odd).

√35280 = 84√5 ≈ 187.83.

Prime Factorization by Division Method

Step-by-step division:

35280 ÷ 2 = 17640 17640 ÷ 2 = 8820 8820 ÷ 2 = 4410 4410 ÷ 2 = 2205 2205 ÷ 3 = 735 735 ÷ 3 = 245 245 ÷ 5 = 49 49 ÷ 7 = 7 7 ÷ 7 = 1

So: 35280 = 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 7 = 2⁴ × 3² × 5 × 7²

Verification

Let us verify: 2⁴ × 3² × 5 × 7² = 16 × 9 × 5 × 49 = 16 × 9 = 144 144 × 5 = 720 720 × 49 = 35,280 ✓

So the prime factorization is correct: 35280 = 2⁴ × 3² × 5 × 7²

Number of Factors of 35280

Using the formula for number of factors: If n = p^a × q^b × r^c... Number of factors = (a+1)(b+1)(c+1)...

35280 = 2⁴ × 3² × 5¹ × 7² Number of factors = (4+1)(2+1)(1+1)(2+1) = 5 × 3 × 2 × 3 = 90

So 35280 has 90 factors.

Square Root of 35280

35280 = 2⁴ × 3² × 5 × 7² = (2²)² × 3² × 5 × (7)² = (4 × 3 × 7)² × 5 = 84² × 5

√35280 = 84√5 ≈ 84 × 2.236 ≈ 187.83

Note: 35280 is not a perfect square because 5 appears to an odd power (5¹).

Questions and Answers

What is the prime factorization of 35280?+

The prime factorization of 35280 is 2⁴ × 3² × 5 × 7² = 16 × 9 × 5 × 49. Step-by-step: 35280 ÷ 2 = 17640, ÷2 = 8820, ÷2 = 4410, ÷2 = 2205, ÷3 = 735, ÷3 = 245, ÷5 = 49, ÷7 = 7, ÷7 = 1.

How many factors does 35280 have?+

35280 = 2⁴ × 3² × 5¹ × 7². Number of factors = (4+1)(2+1)(1+1)(2+1) = 5 × 3 × 2 × 3 = 90. So 35280 has 90 factors.

Is 35280 a perfect square?+

No. 35280 = 2⁴ × 3² × 5¹ × 7². Since 5 appears to the power 1 (odd), 35280 is not a perfect square. For a perfect square, all prime factors must appear to even powers.

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