14. 264 and 504 13. 275 and 132 16. 765, 780, and 990 prime. 45,68, 102, and 425 atively to find the greatest common factor of each group of numbers 17. 150 and 260 atively prime. use the method of dividing by prime factors 18. 237 and 395 20. 330 and 255 22. 585, 1680, and 990 est common mon multiple 19600 and 90 the greatestuse the euclidean algorithm to find the greatest common iven natural23. 18 and 60 21. 84, 90, and 210 factor of each group of numbers. 24. 77 and 84 26. 72 and 90 28. 200 and 350 25. 36 and 90 27. 945 and 450 use the prime factors method to find the least common multiple of each group of numbers ne common nt primes is relatively 29, 48 and 60 30. 21 and 35 their great- 31 81 and 45 32. 84 and 98 qual to the st common33, 20,30, and 50 34. 15,21, and 45