Use a factor tree.
360 Divide by two.
180,2 Divide by two.
90,2,2 Divide by two.
45,2,2,2 Divide by three.
15,3,2,2,2 Divide by three.
5,3,3,2,2,2 Stop.
2 x 2 x 2 x 3 x 3 x 5 = 360
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The Prime Factors of 360 are 2, 3, 5.The Prime Factors of 420 are 2, 3, 5, 7.
360 = 23 x 32 x 5
The factors of 360 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360. Of these factors, 2, 3 and 5 are prime.
360 = 2 x 2 x 2 x 3 x 3 x 5 = 23 x 32 x 5
The prime factors of 360 are 2, 3 and 5. Prime means that a number can only be divided by 1 and itself. The factors of 360 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360. The prime factorization of 360 is 2 x 2 x 2 x 3 x 3 x 5 or 2^3 * 3^2 * 5