I'm trying to find the frequency of the modal class..

given the following data ,find the modal class:

42 43 45 46 46 46 46 49

50 50 51 52 52 54 55 56 56 56 58 58 58 59 59

60 64 66 68 68

73 75 79

I guess the mode is 46 because it's the value that is repeated more times , but I don't know how to get the frequency of the modal class. can someone help me? thanks