Question

Three numbers lcm 23100 and hcf 5 first number 700 second 770

Answer 1

Answer:

15

Step-by-step explanation:

700  = 2 *  2 * 5 * 5 * 7

770 = 2 * 5 * 7  * 11

third number  = 5a  

as HCF is 5   so  a would be coprime with 700 & 770 factors

LCM = 2 *  2 * 5 * 5 * 7 * 11 * a

2 *  2 * 5 * 5 * 7 * 11 * a  = 23100

=> a = 3

Third number = 5a = 5 * 3 = 15