2 x 2 x 2 x 3 x 3 x 5 x 5 = 1800
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7*2*5
2,3,5
Factoring. The breakdown itself is called the number's prime factorization.
The factors of 72 that are prime numbers are 2, 3, and 5. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves without leaving a remainder. In the case of 72, it can be broken down into the prime factors 2^3 * 3^2, where 2 and 3 are the prime factors.
53 and 59
501
Numbers that cannot be broken down any smaller. 2 is made of 1 and 1, but 5 is prime because there are no real (or whole) numbers multiplied together that equal five.
Not really. You just have to try different numbers. As to patterns, the probability of finding a prime goes down for higher numbers. The number of prime numbers up to a number "n" is roughly equal to n / ln(n), where ln() is the natural logarithm function.
The first step to working out the greatest common factor of 4,000 and 1,800 is to break these numbers down into their prime factors: 4000 = 2x2x2x2x2x5x5x5 1800 = 2x2x2x3x3x5x5 The next step is to identify any common factors. In this case, there are common prime factors of three 2s and two 5s. Multiply these together and you get 2x2x2x5x5 = 200 Thus the greatest common factor of 4,000 and 1,800 is 200.
You have to find the smallest prime number that can go into 76, which is 2 and find out what 76/2 is. The, you would have to take the non-prime number and find the smallest prime number that can go into that, and divide by those to numbers again. The prime number you had with 76, you would keep that and keep dividing the non-prime numbers until you end up with all prime numbers.
Numbers that cannot be broken down any smaller. 2 is made of 1 and 1, but 5 is prime because there are no real (or whole) numbers multiplied together that equal five.