What are the prime factors of 1260?

What are the prime factors of 1260?  

Divide 1260 by the smallest prime number (2):
1260 ÷ 2 = 630

Divide 630 by 2 again:
630 ÷ 2 = 315

Divide 315 by the next smallest prime number (3):
315 ÷ 3 = 105

Divide 105 by 3 again:
105 ÷ 3 = 35

Divide 35 by the next smallest prime number (5):
35 ÷ 5 = 7

7 is already a prime number.

Final Prime Factorisation: 1260 = 2 × 2 × 3 × 3 × 5 × 7 = 2² × 3² × 5 × 7

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