No. 3x7=21. 21 can be divided by 3 and 7 of course. You can multiply anything and the product would always be composite (except 1 and 0). Hope this helped :)
As for example expressed as a product of its prime factors 210 is 2*3*5*7
To express 63 as a product of prime numbers, you start by dividing it by the smallest prime number, which is 3. Dividing 63 by 3 gives 21, and dividing 21 by 3 again gives 7. Since 7 is a prime number, the prime factorization of 63 is (3^2 \times 7).
As a product of its prime factors: 3*5*7 = 105
If you mean the product of its prime factors then it is: 2*3*3*7 = 126
It is: 2*3*7 = 42
As for example expressed as a product of its prime factors 210 is 2*3*5*7
No. It's the product of 3 and 7.
It is when the prime factors of whole number are multiplied together that they equal that number. For example the prime factors of 21 are 3 and 7 so 3*7 = 21
To express 63 as a product of prime numbers, you start by dividing it by the smallest prime number, which is 3. Dividing 63 by 3 gives 21, and dividing 21 by 3 again gives 7. Since 7 is a prime number, the prime factorization of 63 is (3^2 \times 7).
As a product of its prime factors: 3*5*7 = 105
As a product of its prime factors: 2*3*5*7 = 210
3 x 5 x 7
63 does not have fewest prime factors. It is a product of 3, 3 and 7.
43 is a prime number. 3 x 3 x 7 = 63
If you mean the product of its prime factors then it is: 2*3*3*7 = 126
3 x 3 x 3 x 7 = 189
As a product of its prime factors: 3*3*5*7 = 315