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Prime factorization of 42

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2 votes
42
2*21
2*3*7
is the prime factorization.
User HonoredMule
by
8.8k points
4 votes

Answer: 2 × 3 × 7

Step-by-step explanation: For the first step of our factoring, we can see that 42 is an even number which means that we can divide it by 2 to get our first two factors.

42 divided by 2 equals 21 so we can factor 42 into 2 × 21.

Since 2 is prime, we can't factor it anymore but we can factor 21 into 3 × 7. Since 3 and 7 are both prime numbers, we are done with factoring.

Finally, we bring down the 2 from the first step and we can see that the prime factorization of 42 is 2 × 3 × 7.

Prime factorization of 42-example-1
User MadProfit
by
8.3k points

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