The prime factorisation of 711 million is 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 5 x 5 x 5 x 5 x 79.
By playing around with the prime numbers in our factorisation, we get B = 5 x 5 x 5 = 125, C = 5 x 3 x 2 x 2 = 120, and D = 5 x 5 x 3 x 2 = 150.
[2] a x b x c x d = abcd = 7.11.
[4] 100a x 100b x 100c x 100d = 100,000,000abcd = 711,000,000.
The prime factors of 316 are 79 x 2 x 2.
