Q: What are the prime factors of the number 72,474,750?

 A: 2, 3, 5, 1193

Why are those the prime factors of the number 72,474,750?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 72,474,750

72,474,750
Factor Arrows
236,237,375
Factor Arrows
312,079,125
Factor Arrows
34,026,375
Factor Arrows
31,342,125
Factor Arrows
3447,375
Factor Arrows
3149,125
Factor Arrows
529,825
Factor Arrows
55,965
Factor Arrows
51,193

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 1193

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 3 x 3 x 5 x 5 x 5 x 1,193 = 72,474,750

This can also be written as 21 x 35 x 53 x 1,1931 = 72,474,750

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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